/// <summary>
/// Get price factors.
/// </summary>
private void PreValue(PriceFactorList factors)
{
var deal = (CalendarSpreadOption)Deal;
// Get forward price samples.
fForwardSample = factors.Get <ForwardPriceSample>(deal.Sampling_Type);
// Get ReferencePrice price factors.
fReferencePrice1 = factors.GetInterface <IReferencePrice>(deal.Reference_Type);
fReferencePrice2 = factors.GetInterface <IReferencePrice>(deal.Reference_Type);
// Get ReferenceVol price factors.
// Default to Reference Type if Reference Vol Type is not set.
if (string.IsNullOrEmpty(deal.Reference_Vol_Type))
{
fReferenceVol1 = factors.Get <ReferenceVol>(deal.Reference_Type);
fReferenceVol2 = factors.Get <ReferenceVol>(deal.Reference_Type);
}
else
{
fReferenceVol1 = factors.Get <ReferenceVol>(deal.Reference_Vol_Type);
fReferenceVol2 = factors.Get <ReferenceVol>(deal.Reference_Vol_Type);
}
// Get correlation price factor based on the ID of the forward price.
fCorrelations = factors.Get <ForwardPriceCorrelations>(fReferencePrice1.GetForwardPrice());
// Get FX rate price factors.
fFxRate = factors.GetInterface <IFxRate>(deal.Currency);
fFxPayoffRate = factors.GetInterface <IFxRate>(deal.DealCurrency());
fPriceFactorFxRate = factors.GetInterface <IFxRate>(fReferencePrice1.DomesticCurrency());
// Get discount rate price factor.
fDiscountRate = factors.GetInterface <IInterestRate>(InterestRateUtils.GetRateId(deal.Discount_Rate, deal.Currency));
}
/// <summary>
/// Returns the energy option pricer.
/// </summary>
protected virtual EnergySpreadOptionPricer GetEnergyOptionPricer(ForwardPriceSample forwardSample, IReferencePrice referencePrice, ReferenceVol referenceVol, double baseDate, double tExpiry, double periodStart, double periodEnd, double realisedAverage, TDate realisedAverageDate, VectorScopedCache.Scope cache)
{
// Price samples
List <TDate> priceSamples = forwardSample.GetSamplesList(periodStart, periodEnd).ToList();
return(new EnergySpreadOptionPricer(
baseDate,
tExpiry,
priceSamples,
forwardSample.Offset,
realisedAverage,
realisedAverageDate,
referencePrice,
referenceVol,
fFxRate,
fPriceFactorFxRate,
fFxPayoffRate,
cache));
}
